Voyage of the Stars

A star is not eternal, it has a lifespan, and when its fuel is exhausted, it is the moment when its function as a star disappears. The Milky Way is composed of countless stars and other types of stars, and it is also not eternal.

One rotation of the Milky Way takes about 280 to 300 million years, Earth years!

If the star map given by the rhombus crystal is the star map three billion years ago, then it has probably rotated ten times by now, which is an integer number of times. However, an integer number of times does not mean that the Milky Way will return to the same star map as it did three billion years ago. Because the Milky Way is always moving, it is constantly running towards the Andromeda Galaxy in both directions.

In addition, the rotation of the galaxy is not as stable as the star system. It has too many impression factors, such as the huge dark matter halo, which causes the rotation speed of the inner and outer circles of the galaxy to appear abnormal.

So if the star map is from three billion years ago, then there is a high probability that humans will not be able to find the location marked on the star map. The reason is that humans have no way to accurately deduce the appearance of the Milky Way three billion years ago. This is not a problem with computer technology, but because humans have too little information about the stars and other aspects of the Milky Way.

"For a long time, the rhombus crystal left us a treasure that we couldn't find!" Yu Nanfeng said when everyone was silent.

The diamond-shaped crystal moved quite suddenly.

At this moment, there is no longer a tense atmosphere in the Tianqin command center, but the people who were summoned have not left. They are either randomly finding a seat to fix themselves, or they are floating in the air at will. Overall, everyone is Staggering around.

Since we are not in a serious conference room, this kind of behavior is normal. After all, this is a gravity-free environment. Some people who don't wear magnetic boots like to float like this, and there is no restriction on this behavior in the regulations. Of course, everyone looks staggered, but it doesn't affect their work.

"This is not necessarily true. The rhombus crystal is obviously working according to the settings of the pioneer civilization. There is no need for it to fool us with a star map that cannot be found, because there is no need at all." At this time, a scholar shook his head and said: "I I think there are two possibilities. One is that the rhombus crystal made this star map through observation after it was awakened. Well, this possibility is very small. The other is that it thinks we can find the location marked on this star map.”

"Hey"

As soon as the scholar finished speaking, Yu Nanfeng chuckled but didn't say anything. The reason is that he felt that the scholar said a few nonsense words and there was no need to talk to him.

In his opinion, it is impossible to observe the Milky Way after the mechanism of the rhombus crystal is awakened, because according to it, it is just a drifting bottle, and its purpose is to convey the news of the Great Voyage to the new generation civilization of the Milky Way. In this way It is impossible for an existence to have the ability to understand the map of the entire galaxy at once.

Not to mention that it does not have it, Yu Nanfeng feels that even a sixth-level civilization does not have that ability. The basis for its judgment comes from the navigation technology of the awakener. When the awakener brought humans into the dangerous star field, its sailing speed was 213.75 times. The speed of light shows that even a level six civilization cannot travel to every corner of the galaxy at once.

Therefore, Yu Nanfeng is more inclined to the view that the star map is an old star map three billion years ago. Thinking this way, he said: "I think it is an old star map, so I don't want to talk nonsense about anything else, so I just asked Here’s a question from my colleagues in related fields: If it’s an old star map, can we find the location? Or can’t we?”

"Hey, some things can't be said so absolutely. There are some prerequisites for whether it can be done or not. We can't say it can be done!"

There was a replying voice, and everyone who was looking down in thought turned around to see clearly, and found that the speaker was Li Zenglu, who had not said a word since arriving at the command center.

Li Zenglu is an expert in computers. He felt that Yu Nanfeng's words were aimed at his computer skills, so he stood up and continued: "Let me put it this way, if the data is enough, our computer will be able to simulate three billion years from now." , an overview star map of the Milky Way three billion years ago, but the accuracy and error are unknown. After all, we still have a huge error in the time it takes for the Milky Way to rotate once. It is difficult to use large errors to simulate such a long span of the past and In the future, I don’t need to say more about the error.”

Oh, it’s not a matter of computer computing power.

Hearing what Li Zenglu said, Yu Nanfeng first glanced at Yue Yuan, and when he saw him nodding towards him, he understood. Then he spoke again: "What's the problem? You can't just throw a hope to us with a rhombus crystal." Bar!"

"It's possible"

The person who replied was Gander from the astronomy team. He had just been observing the star map left by the rhombus crystal, and he probably had some confidence in his mind.

He looked away from the projection screen, turned around and floated in front of everyone. At the same time, he raised his finger and pointed at the position marked on the star map: "But what does it matter? Everyone should know that the positioning of the star map is not like a planet map. Otherwise, we wouldn’t call the starry sky the sea of ​​stars. The sea is just a vast expanse with no reference.

In fact, we do not need to deduce the three-billion-year movement pattern of the entire Milky Way. We only need to identify the positions marked on the star map, and then use our various observation methods to observe the starry sky. Theoretically, in the Slow Star Sea, we only need three stars to locate the target location, but everyone knows that our technology is not powerful enough.

So we need pulsars and more other star assistance. As long as we find those stars in the star map given by the rhombus crystal, we can find the position marked in the star map. Finding stars does not only involve pulsar positioning, but also other methods such as spectrum, metallicity, and other analysis methods of the properties of the stars themselves. "

Everyone nodded. At this moment, scholars who were not in the forefront of astronomical knowledge understood the purpose of astronomers who had always insisted on collecting as much star information as possible every time they visited a star.

Just listen to Gander continue: "So it is possible for us to find the position shown in the star map, but this is not just a matter in the field of astronomy, we also need the help of computer experts, as well as experts related to stellar evolution."

A team of scholars and experts in one field alone cannot accomplish anything. This is true whether it is the age of the universe or the age of the earth. Multi-disciplinary cooperation is a common thing, and everyone knows it.

But at this time, everyone heard Gander continue: "Of course, we still need to understand one thing, that is, what is a small universe? Does it have a fixed position in the Milky Way, or does it move and rotate with the Milky Way? And it's important to change your relative position."